# ethernet.h<a name="ZH-CN_TOPIC_0000001058195023"></a>

-   [Overview](#section1701175441165627)
-   [Summary](#section1100063037165627)
-   [Data Structures](#nested-classes)
-   [Macros](#define-members)

## **Overview**<a name="section1701175441165627"></a>

**Related Modules:**

[NET](NET.md)

**Description:**

Declares the structures related to an Ethernet address. 

**Since:**

1.0

**Version:**

1.0

## **Summary**<a name="section1100063037165627"></a>

## Data Structures<a name="nested-classes"></a>

<a name="table1484023474165627"></a>
<table><thead align="left"><tr id="row922360476165627"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p1174781608165627"><a name="p1174781608165627"></a><a name="p1174781608165627"></a>Data Structure Name</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p285004690165627"><a name="p285004690165627"></a><a name="p285004690165627"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row1533842411165627"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1747333172165627"><a name="p1747333172165627"></a><a name="p1747333172165627"></a><a href="ether_addr.md">ether_addr</a></p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p1808013725165627"><a name="p1808013725165627"></a><a name="p1808013725165627"></a>Defines the information about a 48-bit Ethernet address. </p>
</td>
</tr>
</tbody>
</table>

## Macros<a name="define-members"></a>

<a name="table770526328165627"></a>
<table><thead align="left"><tr id="row2087948568165627"><th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.1"><p id="p14060139165627"><a name="p14060139165627"></a><a name="p14060139165627"></a>Macro Name and Value</p>
</th>
<th class="cellrowborder" valign="top" width="50%" id="mcps1.1.3.1.2"><p id="p1418026667165627"><a name="p1418026667165627"></a><a name="p1418026667165627"></a>Description</p>
</th>
</tr>
</thead>
<tbody><tr id="row1565706533165627"><td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.1 "><p id="p1664355288165627"><a name="p1664355288165627"></a><a name="p1664355288165627"></a><a href="NET.md#ga9822d89774e0d6ddaa06503950130423">ETH_ALEN</a>   6</p>
</td>
<td class="cellrowborder" valign="top" width="50%" headers="mcps1.1.3.1.2 "><p id="p816562786165627"><a name="p816562786165627"></a><a name="p816562786165627"></a>Defines the length of an Ethernet address. </p>
</td>
</tr>
</tbody>
</table>